Home / 10,116.84-15,181.74-4,919.88

Finding the Fourth Proportional to 10,116.84, 15,181.74 and 4,919.88

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Solution

The fourth proportional to 10,116.84, 15,181.74 and 4,919.88 is: 7,382.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,116.84 : 15,181.74 = 4,919.88 : x
  2. Step 2: Convert to fraction form
    10,116.84/15,181.74 = 4,919.88/x
  3. Step 3: Cross multiply
    10,116.84x = 15,181.74 × 4,919.88
  4. Step 4: Simplify right side
    10,116.84x = 74,692,338.99
  5. Step 5: Solve for x
    x = 74,692,338.99/10,116.84
  6. Step 6: Final answer
    x = 7,382.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.